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Discussion Starter · #1 ·
I have a 2004 F350 with a 6.0 and I started hearing a hissing noise coming from the bottom of the turbo. I thought it was the Y-pipe, so I replaced the Y-pipe and replaced the turbo also replaced the pipe connecting to the EGR cooler and it still makes a hissing noise. When I disconnect the VGT solenoid on the turbo the hissing noise stops please help.

Here is a link to my video with the hissing sound.

 

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Discussion Starter · #3 ·
thank you but before I changed everything it started hissing noise that would make me believe it was a leak but I can’t seem to find it i’ve tried putting air to the front of the turbo and there’s no leaks I wonder if I can use the same process to exhaust side to find the leak
 
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